ETFE (Ethylene Tetra Fluoro Ethylene) film tensioning clamp

Abstract

The utility model discloses an ETFE membrane stretch-draw fixture relates to fixture technical field, including box body and spacing subassembly, the left and right of box body front and back both sides upper part are both fixedly connected with two fixed block, the opposite face of two fixed block is both movably connected with transition wheel cylinder no. Two fixing boxes are fixedly connected to the upper portions of the left side and the right side of the box body. Through the arrangement of the first clamping plate and the second clamping plate, an ETFE film can be conveniently clamped and fixed, and through the arrangement of a threaded rod, a trapezoidal block and an extrusion block, the movement of the second clamping plate is facilitated; and through the arrangement of a reset spring, the phenomenon that clamping plates on the two sides get close to the middle to loosen the ETFE film when the ETFE film is not used is avoided, the problem that at present, due to the fact that adjusting pieces such as a lead screw, a fixing bolt and a limiting bolt are all installed in a cavity, operation is inconvenient is solved, and the effect that operation is easy and convenient is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an ETFE film tensioning clamp. Background Art

[0002] ETFE's Chinese name is ethylene-tetrafluoroethylene copolymer; ETFE film material is usually less than 0.20mm thick and is a transparent film material; ethylene-tetrafluoroethylene copolymer film is a crystalline polymer with a melting point of 256-280°C, can self-extinguish when burned, has stable chemical properties, and has good electrical insulation and radiation resistance; ETFE film material is a material used in membrane structure engineering. In the prior art, when connecting vertically or connecting membrane materials on exterior walls, the membrane surface connection needs to be covered with membrane material, and the membrane material at the connection is not flat enough, affecting the appearance. At the same time, the membrane materials are fixed to the inside of the connection device by aluminum alloy clamps, and the aluminum alloy clamps do not have enough clamping force on the membrane materials, and the membrane materials are easy to fall off on the aluminum alloy clamps, affecting the normal work of the membrane materials.

[0003] According to patent publication number CN211228892U, a hidden membrane material connection structure is disclosed, including a device body and a clamp device, wherein an ETFE membrane material is arranged on the device body, and a left transition circular tube is fixedly connected to the left side of the device body, and a right transition circular tube is fixedly connected to the left side of the device body, and a hidden cover plate is arranged on the upper side of the device body, and a plug plate is fixedly connected to the lower side of the hidden cover plate; a connecting plate is fixedly connected to the bottom of the device body by bolts, and the bottom of the connecting plate is fixedly connected to the three-dimensional steel structure; a fixed block is fixedly connected to the upper side of the clamp device, and a right clamping plate is fixedly connected to the right side wall of the clamp device. The hidden membrane material connection structure has a screw rod that rotates to drive the left clamping plate to move to the right, clamping the ETFE membrane material between the left clamping plate and the right clamping plate, and the connection structure inside the device body is covered by the hidden cover plate, and the appearance can meet the requirements of component flatness and beauty. The following problems exist in the prior art:

[0004] In the above-mentioned publication number CN211228892U, since the adjusting parts such as the screw rod, the fixing bolt, the limit bolt, etc. are all installed in the cavity, the problem of inconvenient operation occurs; at the same time, since the current publication number CN211228892U clamps and fixes the ETFE film through the mutual cooperation of the left clamping plate, the right clamping plate, the groove, and the protrusion, when the ETFE film needs to be taken out after clamping, wrinkles appear on the surface of the ETFE film, and the wrinkles cannot be eliminated. Utility Model Content

[0005] The utility model provides an ETFE film tensioning clamp to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An ETFE film tensioning clamp comprises a box body and a limit assembly, wherein two fixed blocks are fixedly connected to the left and right sides above the front and rear sides of the box body, and the opposite surfaces of the two fixed blocks are movably connected to a transition wheel cylinder, and two fixed boxes are fixedly connected to the left and right sides of the box body.

[0008] Two rubber blocks are fixedly connected to the left and right sides of the inner wall of the box body, and the opposite surfaces of the two rubber blocks are fixedly connected with a clamping plate 1, and the opposite surfaces of the two clamping plates 1 are mirror-fixedly connected with a number of semicircular blocks, and the inner wall of the box body is provided with two through grooves communicating with each other inside and outside on the upper and lower sides on the left and right sides, and two movable grooves are provided in the middle of the two through grooves, and vertical blocks are slidably connected inside the two movable grooves, and two clamping plates 2 are arranged on the left and right sides of the inner wall of the box body, and the opposite surfaces of the two clamping plates 2 are fixedly connected with two extrusion blocks, and the outer surfaces of the two extrusion blocks are provided with inclined surfaces below, and a return spring is arranged above the opposite surfaces of the two extrusion blocks.

[0009] A further improvement of the technical solution of the utility model lies in that: the outer surfaces of the inclined surfaces of the two extrusion blocks are overlapped with trapezoidal blocks, and two limit rods are fixedly connected to the left and right sides of the lower surface of the trapezoidal block, the outer surfaces of the two limit rods pass through the outside of the box and are slidably connected, and the lower surface of the trapezoidal block is movably connected with a threaded rod, and the outer surface of the threaded rod passes through the outside of the box and is threadedly connected.

[0010] A further improvement of the technical solution of the utility model is that square grooves are provided on both the upper and left sides of the outer surface of the box body, and the outer surface of the vertical block is fixedly connected to the outer surface of the second clamping plate above and below.

[0011] A further improvement of the technical solution of the utility model is that: a plurality of semicircular grooves are provided on one side of the two clamping plates away from the extrusion block, two placement grooves are provided above the opposite surfaces of the two extrusion blocks, and the interiors of the two placement grooves are fixedly connected to the left and right ends of the return spring.

[0012] A further improvement of the technical solution of the utility model is that the structures of the two clamping plates and the extrusion blocks are identical and are arranged in a mirror image.

[0013] A further improvement of the technical solution of the utility model lies in that: the limiting assembly includes a protective plate, the lower surface of the protective plate overlaps the upper surface of the box, two bolts are inserted through the front and rear sides of the upper surface of the protective plate, the outer surfaces of the two bolts are threadedly connected to the upper surface of the box, two blocks are fixedly connected to the front and rear sides of the lower surface of the protective plate, two transition wheel barrels are movably connected to the opposite surfaces of the two blocks, and the outer surfaces of the two blocks and the transition wheel barrels are inserted into the inside of the square groove.

[0014] A further improvement of the technical solution of the utility model is that: strip openings communicating with the inside and outside are opened on the left and right sides of the inner wall of the fixed box, and sliding grooves are opened on the front and back sides of the inner wall of the fixed box, a heating plate is fixedly connected to the lower part of the inner wall of the strip opening, and a strip plate is slidably connected inside the sliding groove.

[0015] A further improvement of the technical solution of the utility model is that: a plurality of springs are fixedly connected to the upper surface of the strip plate, the upper ends of the plurality of springs are fixedly connected to the upper surface of the inner wall of the fixed box, and a heating scraper is fixedly connected to the lower surface of the strip plate.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides an ETFE film tensioning clamp, which adopts the mutual cooperation of a rubber block, a clamping plate 1, a clamping plate 2, an extrusion block, a placement groove, a groove, a reset spring, a through groove, a threaded rod, a trapezoidal block, and a square groove. The clamping plate 1 and the clamping plate 2 are arranged so as to facilitate the clamping and fixing of the ETFE film. The threaded rod, the trapezoidal block, and the extrusion block are arranged so as to facilitate the movement of the clamping plate 2. The reset spring is arranged so as to facilitate the clamping plates 1 on both sides to move toward the middle when not in use so as to loosen the ETFE film. The current problem of inconvenience in operation due to the installation of adjusting parts such as screw rods, fixing bolts, and limit bolts in the cavity is solved, and the effect of simple and convenient operation is achieved.

[0018] 2. The utility model provides an ETFE film tensioning clamp, which adopts the mutual cooperation of a fixed box, a strip mouth, a slide groove, a heating plate, a strip plate, a spring, and a heating scraper. The heating plate and the heating scraper are arranged to facilitate heating, and the ETFE film is prevented from having wrinkles. The ETFE film is pulled to move through the arrangement of the heating scraper so that its surface is flattened, which solves the current problem that the ETFE film surface has wrinkles when the ETFE film needs to be taken out after clamping, thereby achieving the effect of eliminating wrinkles and improving the quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of the utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the extrusion block and the return spring of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the fixed box of the utility model.

[0024] In the figure: 1. box body; 11. rubber block; 12. clamping plate 1; 13. clamping plate 2; 131. semicircular groove; 14. extrusion block; 141. placement groove; 15. reset spring; 16. through groove; 17. threaded rod; 18. trapezoidal block; 19. square groove; 2. limit assembly; 21. protective plate; 22. bolt; 23. block; 24. transition wheel cylinder 2; 3. fixing block; 4. transition wheel cylinder 1; 5. fixing box; 51. strip mouth; 52. slide groove; 53. heating plate; 54. strip plate; 55. spring; 56. heating scraper. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, the utility model provides an ETFE film tensioning clamp, comprising a box body 1 and a limit assembly 2, two fixed blocks 3 are fixedly connected to the left and right sides of the upper front and rear sides of the box body 1, and the opposite surfaces of the two fixed blocks 3 are movably connected to a transition wheel cylinder 4, and two fixed boxes 5 are fixedly connected to the upper left and right sides of the box body 1;

[0027] The internal structure of the box body 1 facilitates the clamping and fixing of the ETFE film. When the ETFE film is not in use, the internal structure of the fixing boxes 5 on both sides can eliminate the surface wrinkles of the ETFE film after clamping. The setting of the limiting component 2, the fixing block 3 and the transition wheel cylinder 4 facilitates the flexible movement of the ETFE film, and strengthens the fixing and limiting effect of the ETFE film when not in use.

[0028] like Figure 2As shown, two rubber blocks 11 are fixedly connected to the left and right sides of the inner wall of the box body 1, and the opposite surfaces of the two rubber blocks 11 are fixedly connected to a clamping plate 12, and the opposite surfaces of the two clamping plates 12 are mirror-fixedly connected to a plurality of semicircular blocks, and two through grooves 16 communicating with each other are opened at the upper and lower parts of the left and right sides of the inner wall of the box body 1, and two movable grooves are opened in the middle of the two through grooves 16, and vertical blocks are slidably connected inside the two movable grooves, and two clamping plates 13 are arranged on the left and right sides of the inner wall of the box body 1, and the opposite surfaces of the two clamping plates 13 are fixedly connected to two extrusion blocks 14, and the lower surfaces of the outer surfaces of the two extrusion blocks 14 are Each side is provided with an inclined surface, and a return spring 15 is arranged above the opposite surface of the two extrusion blocks 14. The outer surfaces of the inclined surfaces of the two extrusion blocks 14 are overlapped with a trapezoidal block 18. Two limit rods are fixedly connected to the left and right sides of the lower surface of the trapezoidal block 18. The outer surfaces of the two limit rods penetrate the outside of the box body 1 and are slidably connected. The lower surface of the trapezoidal block 18 is movably connected with a threaded rod 17. The outer surface of the threaded rod 17 penetrates the outside of the box body 1 and is threadedly connected. Square grooves 19 are provided on the left and right sides above the outer surface of the box body 1. The outer surface of the vertical block is fixedly connected to the outer surface of the clamping plate 2 13 above and below;

[0029] When in use, the limit assembly 2 is moved out, and the two groups of ETFE films are respectively inserted into the fixed box 5 and pass through the square groove 19 and the upper through groove 16 to enter the interior of the box body 1, and then pass through the interior of the lower through groove 16 and move out, and then the trapezoidal block 18 is moved upward by rotating the threaded rod 17, thereby driving the limit rod to slide upward. The position of the trapezoidal block 18 is restricted by the setting of the limit rod, so that the trapezoidal block can only move up and down to prevent rotation. When the trapezoidal block 18 moves upward to the appropriate position and moves the extrusion blocks 14 and the clamping plate 13 on the left and right sides, it drives the reset spring 15 to stretch, so that the clamp The holding plate 2 13 and the clamping plate 1 12 clamp and fix the ETFE film. While clamping and fixing, the rubber block 11 is squeezed and shrunk to a certain extent. The shrunk rubber block 11 has good elasticity, so that the clamping plate 12 and the clamping plate 2 13 fit tightly. When not in use, the threaded rod 17 is rotated counterclockwise to move the trapezoidal block 18 downward. Due to the action of the stretched restoring spring 15, the clamping plates 2 13 on both sides are pulled apart from the ETFE film, thereby loosening. After use, the limiting component 2 is used to install and fix it to the box body 1, thereby strengthening the limiting of the ETFE film.

[0030] like Figure 3As shown, a plurality of semicircular grooves 131 are provided on the side of the two clamping plates 13 away from the extrusion block 14, and two placement grooves 141 are provided above the opposite surfaces of the two extrusion blocks 14. The interiors of the two placement grooves 141 are fixedly connected to the left and right ends of the return spring 15. The structures of the two clamping plates 13 and the extrusion blocks 14 are the same and are mirror-imaged.

[0031] The provision of the semicircular groove 131 in the second clamping plate 13 and the semicircular block in the first clamping plate 12 enhances the clamping and limiting effect on the ETFE film, and the provision of the placement groove 141 facilitates the installation and storage of the reset spring 15.

[0032] like Figure 4 As shown, the limit assembly 2 includes a protective plate 21, the lower surface of the protective plate 21 overlaps the upper surface of the box body 1, two bolts 22 are inserted through the front and rear sides of the upper surface of the protective plate 21, the outer surfaces of the two bolts 22 are threadedly connected to the upper surface of the box body 1, and two blocks 23 are fixedly connected to the left and right sides of the lower surface of the protective plate 21, and the opposite surfaces of the two blocks 23 are movably connected with a transition wheel barrel 24, and the outer surfaces of the two blocks 23 and the transition wheel barrel 24 are inserted into the inside of the square groove 19;

[0033] The bolts 22 are arranged to facilitate the installation and fixing of the box body 1. By loosening the bolts 22, the lower surface of the protective plate 21 and the upper surface of the box body 1 are loosened, and then the ETFE film is pulled to make the ETFE film contact and roll on the outer surfaces of the transition wheel barrel 24 and the transition wheel barrel 1 4, thereby reducing the friction. The ETFE film is protected and the square groove 19 and the upper surface edge of the box body 1 are prevented from being damaged.

[0034] like Figure 5 As shown, the inner wall of the fixed box 5 is provided with a strip opening 51 communicating with the inside and outside on both the left and right sides, and the inner wall of the fixed box 5 is provided with a slide groove 52 on both the front and rear sides. A heating plate 53 is fixedly connected to the lower part of the inner wall of the strip opening 51, and a strip plate 54 is slidably connected inside the slide groove 52. A plurality of springs 55 are fixedly connected to the upper surface of the strip plate 54, and the upper ends of the plurality of springs 55 are fixedly connected to the upper surface of the inner wall of the fixed box 5, and a heating scraper 56 is fixedly connected to the lower surface of the strip plate 54.

[0035] When it is necessary to loosen and remove the ETFE film, the ETFE film is loosened by loosening the limit assembly 2 and the internal clamping structure of the box body 1, and the ETFE film is directly pulled and moved inside the fixed box 5, and is heat-treated by the arrangement of the heating plate 53 and the heating scraper 56. When the ETFE film passes between the heating plate 53 and the heating scraper 56, the wrinkles on the surface of the ETFE film are eliminated by the arrangement of heat, and at the same time, the surface of the ETFE film is scraped flat by the arrangement of the heating scraper 56, so that the surface of the ETFE film is flat, and the heating plate 53, the heating scraper 56, and the electric wire are electrically connected to the external power supply, and there is a certain distance between the heating scraper 56 and the heating plate 53, which is convenient for the use of the ETFE film, and the arrangement of the spring 55 is convenient for the use of several or more groups of ETFE films with superimposed thicknesses, and the spring 55 is convenient for the use of thicknesses of different sizes.

[0036] The following is a detailed description of the working principle of the ETFE film tensioning fixture.

[0037] The trapezoidal block 18 is moved upward by rotating the threaded rod 17. When the trapezoidal block 18 moves upward to the appropriate position, the extrusion blocks 14 and the clamping plate 2 13 on the left and right sides are moved, thereby driving the reset spring 15 to stretch, so that the clamping plate 2 13 and the clamping plate 1 12 clamp and fix the ETFE film. The trapezoidal block 18 is moved downward by rotating the threaded rod 17 counterclockwise. Due to the action of the stretched reset spring 15, the clamping plates 2 13 on both sides are pulled apart from the ETFE film, thereby loosening. The heating plate 53 and the heating scraper 56 are provided to perform a heating treatment. When the ETFE film passes between the heating plate 53 and the heating scraper 56, the heat is provided to eliminate the wrinkles on the surface of the ETFE film. At the same time, the surface of the ETFE film is scraped flat by the heating scraper 56. The spring 55 is provided to make the heating scraper 56 closely fit and scrape the ETFE film.

[0038] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An ETFE film tensioning fixture, comprising a box (1) and a limit assembly (2), characterized in that: Two fixed blocks (3) are fixedly connected to the left and right sides above the front and rear sides of the box body (1); the opposite surfaces of the two fixed blocks (3) are movably connected to a transition wheel cylinder (4); and two fixed boxes (5) are fixedly connected to the left and right sides above the box body (1); Two rubber blocks (11) are fixedly connected to the left and right sides of the inner wall of the box body (1), and the opposite surfaces of the two rubber blocks (11) are fixedly connected to a clamping plate (12), and the opposite surfaces of the two clamping plates (12) are fixedly connected to a plurality of semicircular blocks in a mirror-image manner. Two through grooves (16) communicating with each other are provided at the upper and lower parts of the left and right sides of the inner wall of the box body (1), and two movable grooves are provided in the middle of the two through grooves (16). Vertical blocks are slidably connected inside the two movable grooves. Two clamping plates (13) are provided on the left and right sides of the inner wall of the box body (1), and the opposite surfaces of the two clamping plates (13) are fixedly connected to two extrusion blocks (14), and the lower parts of the outer surfaces of the two extrusion blocks (14) are provided with inclined surfaces, and a return spring (15) is provided above the opposite surfaces of the two extrusion blocks (14).

2. The ETFE film tensioning fixture according to claim 1, characterized in that: The outer surfaces of the inclined surfaces of the two extrusion blocks (14) are overlapped with a trapezoidal block (18), and two limit rods are fixedly connected to the left and right sides of the lower surface of the trapezoidal block (18), and the outer surfaces of the two limit rods pass through the outside of the box body (1) and are slidably connected, and the lower surface of the trapezoidal block (18) is movably connected to a threaded rod (17), and the outer surface of the threaded rod (17) passes through the outside of the box body (1) and is threadedly connected.

3. The ETFE film tensioning fixture according to claim 1, characterized in that: Square grooves (19) are provided on both left and right sides of the outer surface of the box body (1), and the outer surface of the vertical block is fixedly connected to the outer surface of the second clamping plate (13) above and below.

4. The ETFE film tensioning fixture according to claim 1, characterized in that: A plurality of semicircular grooves (131) are provided on one side of the two clamping plates (13) away from the extrusion block (14), and two placement grooves (141) are provided above the opposite surfaces of the two extrusion blocks (14). The interiors of the two placement grooves (141) are fixedly connected to the left and right ends of the return spring (15).

5. The ETFE film tensioning fixture according to claim 1, characterized in that: The two clamping plates (13) and the extrusion block (14) have the same structure and are arranged in a mirror image.

6. The ETFE film tensioning fixture according to claim 1, characterized in that: The limit assembly (2) comprises a protective plate (21), the lower surface of the protective plate (21) overlaps the upper surface of the box body (1), two bolts (22) are inserted through the front and rear sides of the upper surface of the protective plate (21), the outer surfaces of the two bolts (22) are threadedly connected to the upper surface of the box body (1), two blocks (23) are fixedly connected to the front and rear sides and the left and right sides of the lower surface of the protective plate (21), the opposite surfaces of the two blocks (23) are movably connected with a transition wheel barrel 2 (24), and the outer surfaces of the two blocks (23) and the transition wheel barrel 2 (24) are inserted into the inside of the square groove (19).

7. The ETFE film tensioning fixture according to claim 1, characterized in that: The inner wall of the fixed box (5) is provided with strip openings (51) communicating with the inside and outside on both left and right sides, and the inner wall of the fixed box (5) is provided with sliding grooves (52) on both front and rear sides. A heating plate (53) is fixedly connected to the lower part of the inner wall of the strip opening (51), and a strip plate (54) is slidably connected to the inside of the sliding groove (52).

8. The ETFE film tensioning fixture according to claim 7, characterized in that: A plurality of springs (55) are fixedly connected to the upper surface of the strip plate (54), the upper ends of the plurality of springs (55) are fixedly connected to the upper surface of the inner wall of the fixed box (5), and a heating scraper (56) is fixedly connected to the lower surface of the strip plate (54).

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